Replace the engine oil and the engine oil filter.
• | For the 3100 L82 (VIN M) engine with an oil cooler, refer to Engine Oil and Oil Filter Replacement in Engine Mechanical 3.1L. |
• | For the 3100 L82 (VIN M) engine without an oil cooler, refer to Engine Oil and Oil Filter Replacement in Engine Mechanical 3.1L. |
• | For the 3800 L36 (VIN K) engine, refer to Engine Oil and Oil Filter Replacement in Engine Mechanical 3.8L. |
Oils of the proper quality for the vehicle can be identified by looking for the STARBURST symbol. The STARBURST symbol indicates that the oil has been certified by the American Petroleum Institute (API), and is preferred for use in gasoline engines.
Notice: Using oils of any viscosity other than those recommended could result in engine damage. When choosing an oil, consider the range of temperatures the vehicle will be operated in before the next oil change. Then, select the recommended oil viscosity.
Important: If the vehicle is operated in an area where the temperature falls below -29°C (-20°F), consider using a SAE 5W-30 synthetic oil or a SAE 0W-30. Both will provide easier cold starting and better protection for the vehicle's engine at extremely low temperatures.
Engine oil viscosity (thickness) has an effect on the fuel economy and the cold-weather operation (engine starting and oil flow). Lower viscosity engine oils can provide better fuel economy and cold-weather performance. However, higher temperature weather condition require higher viscosity engine oils for satisfactory lubrication.
• | For the 3100 L82 (VIN M) engine, SAE 5W-30 is the recommended viscosity. However, 10W-30 may be used if the outside air temperature is above than -18°C (0°F). Do not use other viscosity oils, such as SAE 20W-50. |
• | For the 3800 L36 (VIN K) engine, SAE 10W-30 is the recommended viscosity. However, 5W-30 may be used if the outside air temperature is lower than 16°C (60°F). Do not use other viscosity oils, such as SAE 20W-50. |
Rotate the tires to equalize the wear and obtain maximum tire life. Refer to Tire Rotation in Tires and Wheels.
Check the tires for abnormal wear or damage. If irregular or premature tire wear exists, refer to Abnormal or Excessive Tire Wear in Suspension General Diagnosis.
Inspect brake lines and hoses for proper hook-up binding, leaks, cracks or chafing. Refer to Brake Hose Inspection in Hydraulic Brakes. Inspect disc brake pads for wear. Refer to Brake Pad Inspection in Disc Brakes. Inspect the rotors for poor surface condition. Inspect other brake system components, including the brake calipers and the parking brake. Check the parking brake adjustment. The brakes may need to be inspected more often if the customer's driving habits or conditions result in frequent braking.
Inspect the air cleaner filter every 25 000 km (15,000 miles) if driving in dusty conditions. Replace if necessary. Replace the air cleaner filter every 50 000 km (30,000 miles). Replace more often under dusty conditions. Refer to Air Cleaner Assembly Replacement in 3.1 L Engine Controls.
Change the transmission fluid and the transmission fluid filter. Refer to Automatic Transmission Fluid Filter and Seal Replacement for a 4T60E in Automatic Transmission/Transaxle or Automatic Transmission Fluid Filter and Seal Replacement for a 4T65E in Automatic Transmission/Transaxle.
Inspect the drive belt.
• | For the 3100 L82 (VIN M) engine, refer to Drive Belt Excessive Wear Diagnosis in Engine Mechanical 3.1L. |
• | For the 3800 L36 (VIN K) engine, refer to Drive Belt Diagnosis in Engine Mechanical 3.8L. |
Inspect the following components for damage or leaks:
• | Fuel tank |
• | Fuel tank cap |
• | Fuel lines |
• | Fuel rail |
• | Fuel injectors |
Inspect the fuel tank cap seal for an uneven filler neck imprint and any damage.
Periodic replacement of the fuel filter is not required.
Drain, flush and refill the cooling system with new coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
Clean the spark plug wires and inspect for burns, cracks or other damage. Ensure that the fit between the spark plug wire boots at the spark plugs and at the coils is snug. Replace the spark plug wires as needed.
• | For the 3100 L82 (VIN M) engine, refer to Spark Plug Wire Harness Replacement in Engine Electrical. |
• | For the 3800 L36 (VIN K) engine, refer to Spark Plug Wire Harness Replacement in Engine Electrical. |
Replace the spark plugs.
• | For the 3100 L82 (VIN M) engine, refer to Spark Plug Replacement in Engine Electrical. |
• | For the 3800 L36 (VIN K) engine, refer to Spark Plug Replacement in Engine Electrical. |